P0446 Code A Step-by-Step Guide to Identifying and Fixing EVAP System Vent Control Circuit Malfunctions

This generic OBD-II code indicates that the evaporative vent valve in the emission control system is malfunctioning. The code reads Evaporative Emission Control System Vent Control Circuit Malfunction, but I've come to believe that any of the EVAP codes can be a result of the ... Disclaimer: Under no circumstances will proclaimliberty2000 be responsible or liable in any way for any content, including but not limited ... The fault code P0446 means your vehicle's evaporative emission control system or the vent valve in the EVAP system is malfunctioning. in this video I'm gonna share with you how to diagnose and fix a P0446 Trouble Code On a GMC Yukon! Evap System Testing! I keep getting code PO466 Evaporative emission control system vent control circuit. It comes on for a couple days then goes off and then reappears again. P0446 is a diagnostic trouble code (DTC) for "Evaporative Emission Control System Vent Control Circuit Malfunction". This can happen for multiple reasons. P0446 Explained - EVAP Emission Control System Vent Control Circuit Malfunction (Simple Fix) · Comments123. P0446 is a "vent control circuit malfunction" so the problem should be located somewhere in the vent valve or its wiring. If it were a leak it would be P0442. Error code P0446 indicates a malfunction in the EVAP vent control circuit of the vehicle. Where is the evaporative emissions vent control valve?